Learn the differences between quality assurance and quality control. Explore definitions, examples, and how QA and QC ensure quality.

Start your quality journey by mastering the 7 Basic Tools of Quality at the world’s largest society for quality, ASQ.org.

Quality professionals need a handy reference of quality terms, acronyms, key people, and definitions. Browse the updated ASQ Quality Glossary here.

Explore the concepts, tools, applications, and technical terms that make up the world of quality. For more definitions, browse the online glossary of quality terms, acronyms, and key people in …

Have a Standards Question? Ask the Experts! Submit your technical questions about an international or American national standard to our panel of seasoned quality professionals.

Quality management systems (QMS) play an important role in the continuing improvement of organizations. Learn the history and benefits of QMS at ASQ.org.

Level two quality products and services need only satisfy customer expectations. The authors discuss the philosophies of eight quality experts - Crosby, Deming, Feigenbaum, Ishikawa, …

Dec 4, 2025 · Search the complete list of upcoming quality conferences and in-person events with ASQ's calendar. Register for an ASQ event & expand your network today.

Learn more about how to certify to ISO 9001:2015 and transition from ISO 9001:2008. Buy the official quality management systems standard from ASQ.org.

Learn About Quality / Quality Resources / Eight Disciplines 8D Share this page Facebook LinkedIn